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9dcace3caf
we were checking for it in the wrong order. This caused a miscompilation because the return slot optimization assumes that the call it is dealing with is NOT a memcpy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50444 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
921 B
LLVM
18 lines
921 B
LLVM
; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | grep {call.*memcpy.*agg.result}
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin8"
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@x = external global { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=1]
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define void @foo({ x86_fp80, x86_fp80 }* noalias sret %agg.result) nounwind {
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entry:
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%x.0 = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=1]
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%x.01 = bitcast { x86_fp80, x86_fp80 }* %x.0 to i8* ; <i8*> [#uses=2]
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call void @llvm.memcpy.i32( i8* %x.01, i8* bitcast ({ x86_fp80, x86_fp80 }* @x to i8*), i32 32, i32 16 )
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%agg.result2 = bitcast { x86_fp80, x86_fp80 }* %agg.result to i8* ; <i8*> [#uses=1]
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call void @llvm.memcpy.i32( i8* %agg.result2, i8* %x.01, i32 32, i32 16 )
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ret void
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}
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declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind
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